EFFECTS OF CLAY MINERALS ON VISCOSITY AND COPPER ENTRAINMENT LOSSES IN SMELTING SLAGS. Materials Science, Engineering. 2017. Hydrous aluminium phyllosilicate group minerals, often broadly classified as 'clays', exist as common gangue components in most copper porphyritic ore deposits. In the case of …
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Usually, before flotation, the feed is deslimed, removing any fine clay minerals present. In the first flotation stage, mica is removed with an amine collector. In the second stage, titanium and iron oxide minerals, such as ilmenite and magnetite, are removed using an anionic collector.
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. There have …
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. …
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Clay minerals are often associated with copper, gold and other valuable minerals and place a widespread problem in mineral flotation. This paper is one of a series addressing the problem caused by ...
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However, with the addition of the maximum tested amount of illite and kaolinite (i.e. 30%), the final copper recovery only slightly changed to 88%. A similar trend has been reported recently for the effect of clay minerals on the copper flotation using chalcopyrite (Farrokhpay and Ndlovu, 2013). The reduction in the copper recovery due to the ...
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Semantic Scholar extracted view of "Behavior of talc and mica in copper ore flotation" by S. Farrokhpay et al. Skip to search form Skip to main content Skip to account menu. …
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Clay minerals can be detrimental to mineral flotation and high viscosity and high particle entrainment promoted by clay minerals are among the main contributing factors (Forbes et al., 2014 ...
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The nature of a clay mineral in aqueous solution is related to its crystal structure. Most clay minerals are phyllosilicates which are made up of silicon‑oxygen tetrahedrons (T) and aluminum‑oxygen octahedrons (O) in certain proportions [9].Montmorillonite (T-O-T), kaolinite (T-O) and talc (T-O-T) are common clay minerals …
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The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is …
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A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more …
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In the flotation of a copper-gold ore, it was found that when content of fine calcite and dolomite increased, the pulp rheology became complicated with shear thickening behaviors and a certain ...
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Clay minerals such as kaolinite, bentonite and smectite, which are often associated with copper, gold and other valuable minerals, place a widespread problem in mineral flotation. There have been numerous observations of these clay minerals having a deleterious effect on mineral flotation grade and recovery, with simultaneous …
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Advances in the application of AFM in mineral flotation are reviewed. ... Stretching force curves between a polyprotein molecule and a copper surface. ∆L c is the contour length increment. Reprinted with ... This indicated that a selective flocculation between clay particles, such as mica, can achieve when HPAM is added to bitumen …
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Unfortunately no studies were found to evaluate copper minerals; however, it is worth mentioning the work of Liu and Peng (2015), who assessed the flotation of coal minerals with high clay content, both in freshwater and in saline water (processed water). The dispersing agent (lignosulfonate) showed results that much depending on its dosage …
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economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance. This paper reviews the literature on the recovery of the above mentioned minerals by flotation.
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Gangue recovery in copper-lead flotation increased from about 5% to 20–30% for 40 μm and 10 μm particles, ... In understanding the effects of clay minerals on flotation, it is important to fully identify the mechanical entrainment mechanism. ... Illite is a clay mineral, and a member of the true mica group, which forms platy, fibrous, or ...
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Zhang et al. [36] have found that clay mineral particle interactions in the flotation system dominate the pulp rheology and pulp viscosity slightly increased by clay minerals could enhance the ...
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Based on the experimental results, flotation processes carried out on raw feed allowed the recovery of the majority of REE minerals (>50%), but the process was unselective, where clay and silicate ...
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Six flotation tests were conducted using the copper–gold ore and its mixtures with quartz, clay minerals and gypsum. Fig. 1 shows the mass recovery as a function of water recovery from these tests. As can be seen, flotation of the ore or baseline resulted in a 5% mass recovery and 31% water recovery at the completion of flotation.
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DOI: 10.1016/J.MINENG.2018.06.021 Corpus ID: 103072302; Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer @article{Liu2018MitigatingTN, title={Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer}, author={Shiqi Liu and Xumeng Chen …
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Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. There have …
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The objective of this study is to evaluate the deleterious effects of different clay minerals on copper flotation and specify the underpinning mechanism. Swelling bentonite with a 2:1 structure and non-swelling kaolin Q38 with a 1:1 structure, were chosen in this study to represent two typical kinds of clays occurring in industry ore deposits.
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The presence of clay leads to low recoveries in the process of flotation of copper ores which is also reflected in a decrease of the concentrates grades. Due to this, the scientific interest in studying the effect and mechanisms of action of clay minerals in the flotation process has increased, which has resulted in a better understanding of the …
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Clay Minerals in Flotation and Comminution Operations By Elizaveta Forbes, Mark Ma, Warren Bruckard Edited by Markus Gräfe, Craig Klauber, Curtin University of Technology, Perth, Angus J. McFarlane, Commonwealth Scientific and Industrial Research Organisation, Canberra, David J. Robinson, Commonwealth …
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The effect of clay minerals in flotation and treatment methods are summarized, which is helpful to provide technical reference for the research of flotation technology with high clay content, and to put forward the future research content and direction in this field. ... Peng Y, Farrokhpay S, et al. Interactions of clay minerals in …
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The aim of this study is to understand the effects of talc and muscovite (as representative of Mg and Al containing clays, respectively) on the flotation of a copper ore through examination of the grade and recovery behaviour, pulp rheology, and froth …
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Flotation of non-metallic minerals. Actinol D A refined Tall Oil 46% Linoleic, 51% oleic. Undiluted liquid .5 to 2.5 Flotation of non-metallic minerals. Activated Carbon A finely divided activated carbon product. Dry 05 to 1.5 In some cases when used with xanthate higher grade sulphide concentrates have been produced. Aerofloat 15
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Effect of clay minerals on copper flotation. The effects of various amounts of bentonite and kaolin on copper flotation are shown in Fig. 2(a) and (b), respectively. Flotation tests were performed with Telfer clean ore as a laboratory baseline in the absence of clay samples. The presence of either bentonite or kaolin affected copper …
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Semantic Scholar extracted view of "The entrainment of kaolinite particles in copper and gold flotation using fresh water and sea water" by Ming Zhang et al. ... Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer. ... a mixed-layer mineral (mica and montmorillonite) " illite", ...
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A common method in plants to reduce an unwanted effect of clay minerals prior to flotation is. prevention of fine particles e ntrance into the flotati on process and washing of ores. The plants ...
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